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part of an Ostrea delta attached to it, from Sandfoot 
Castle, near Weymouth. The same species is also 
found at Born, in Lincolnshire, where it is called the 
Sickle oyster : at Brambery hill, Brora, in Scotland, of 
a large size; (the latter I have by favour of Mr. Farey ;) 
and at the following places : near Broomham, Somerset; 
Rude Cliff, near Osmington ; Radipole and Portland, 
like fig. 2; Coney Weston; Ilminster; near Woburn; 
Farley gate, Gloucestershire ; Bennington, Herts, gene- 
rally of a reddish colour ; and with other shells on the 
high range of hills bounding Romney Marsh, in Kent. 
Caine affords varieties of this species : my friend, Thos. 
Meade, Esq. has a fine oval specimen, wide and deeply 
hollowed, from the Clunch Clay bed, 200 feet thick, 
near Caine. The deeper variety is said to characterize 
the Stratum, and is common throughout Somersetshire, 
Wiltshire, Oxfordshire, and Bedfordshire, where they 
are found waterworn. 
